1999 "EE" Evinrude 5 thru 15 4-Stroke Service Manual, P/N 787022, Page 44Get this manual
Synchronization and Linkage Adjustments 9.915 (305cc) Tiller Models
INote You
must perform this step-by-step procedure exactly as written to ensure consistent engine idling and smooth operation throughout the RPM rangeShift Lever Detent Adjustment
1Loosen detent spring adjustment screwand remove neutral lockout link connector from shift lever
2Rotate propeller shaft and move the shift lever to NEUTRAL position3Move the detent spring to fully engage notch of the shift lever detentTighten detent adjustment screw